It is enough to pay attention to these eight items when applying phosphate fertilizer!
Published:
2022-08-31
After the application of phosphate fertilizer, crops in the current season can generally only absorb and utilize a small part of it, while the effect of phosphate fertilizer in the later period can last for several years. Therefore, it is not necessary to apply phosphate fertilizer every year after application.
1. Phosphate fertilizer does not need to be applied every year:
After the application of phosphate fertilizer, crops in the current season can generally only absorb and utilize a small part of it, while the effect of phosphate fertilizer in the later period can last for several years. Therefore, it is not necessary to apply phosphate fertilizer every year after application.
2. Early application of phosphate fertilizer:
When seedling crops absorb phosphorus throughout the growing season accounts for half of the fastest crop total phosphorus absorption, if the seedling crops are insufficient, it will affect the later growth period, even if the latter is applied to solve the early loss of phosphorus deficiency that is not easily recoverable, so It should be noted that seedling crops cannot be lacking.
3. Fine phosphate fertilizer:
Superphosphate is easy to absorb moisture and agglomerate during storage, so when applying, it must be broken and sieved to improve the absorption of crops and roots.
4. Acupoint application and strip application:
The phosphorus concentration in the soil can easily fail for iron, aluminum, calcium and fixing. Therefore, when applying, we should be able to carry out hole application and strip application, so that phosphorus is fixed around the seeds and roots, which can effectively prevent phosphorus from being fixed by iron, aluminum, calcium and other elements in the surrounding soil, and is conducive to Improves uptake by crop roots.
5. Mixed phosphate fertilizer and organic fertilizer:
Mixed application of phosphate fertilizers, especially calcium magnesium phosphate fertilizers and organic fertilizers, can convert those insoluble phosphorus in phosphate fertilizers into available phosphorus, which is easily absorbed by crops..
6. Deep and shallow application:
The layered application of mobile phosphate fertilizer in the soil is small, and basically does not move in the facility, so the application of chemical fertilizer is deep and shallow. The application of phosphate fertilizer in the shallow layer is beneficial to improve the absorption of seedlings, so that the crops in our country can turn green early and tiller quickly. Phosphate fertilizers are usually applied in shallow 1/3 and deep administration in 2/3.
7. Combined application of nitrogen and phosphorus and mixed application of nitrogen fertilizer:
Crops absorb and utilize various nutrients in a certain proportion of time. If the proportion is out of balance, it will not grow well. The application of nitrogen and phosphorus can not only balance nutrients, but also promote root growth and obtain high yield.
8. Spray outside the root:
It is often caused by the lack of phosphorus due to the growth of the deceased crops, the aging of the root system, and the reduction of the ability to absorb nutrients. At this time, a water-soluble calcium superphosphate can be sprayed on the leaves of crops, so that phosphorus can enter the body of the plant through the stomata or cuticle cells of the leaves.
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